Pyrazoles. I. Synthesis of 4-hydroxypyrazolo[3,4-d]-v-triazine. A new analog of hypoxanthine.
D000493:Allopurinol; D007042:Hypoxanthines; D011720:Pyrazoles / Q000138:chemical synthesis*; D013053:Spectrophotometry; D014227:Triazines / Q000138:chemical synthesis*
D007042:Hypoxanthines; D011720:Pyrazoles; D014227:Triazines; D000493:Allopurinol